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Singer Touch and Sew Model 648 will not zigzag

My Singer Touch and Sew Model 648 will not zigzag when the cams are in place. It was working OK but stopped zigzaging during a sewing job.

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  • Jerry Ott Jan 21, 2013

    By saying "the head" do you mean the left side of the machine behind the 'door'?

  • sylviaivie Jan 21, 2013

    Directly above the stitching area, yes. Do be careful... if you lose a pin, it is very hard to find replacements. Take pictures before you disassemble to refer to later. Good luck!

  • Jerry Ott Jan 24, 2013

    I have discovered that the Cam Gear, Singer # 172114 had 4 broken teeth and thus this is the reason for the machine not being able to zigzag. I have posted another question about proper replacement of this cam gear once the new part arrives. Thank you all for your information. Jerry.

  • sylviaivie Jan 25, 2013

    lovely...

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  • Sewing Machines Master
  • 1,564 Answers

There is an arm in the head that does the zig zag movement and attaches to the needle bar with a pin. If that isn't connected zig zag won't work at all.

Posted on Jan 19, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Zenqi
  • 208 Answers

SOURCE: singer machine needle won't do width in zigzag

It sounds like it needs lubrication on the needle bar frame and linkage.

Posted on Oct 01, 2009

  • 1 Answer

SOURCE: Singer 5050

I was hoping you would have got another answer, I have a mechanical sewing machine ( Singer 5040) with the exact same problem. However, if i use the programed stitches I can sew a zigzag. If i do it manually and set the zigzag width to any width ( even the widest) I get only the same straight stitch, and no mater what length I select it is the same too, very close to gether about 1 1/2 inch stitch.
I took my entire maching apart to expose inside both top side and underneath, nothing apeared loose or broke and i oiled it up. I bought a new bobbin holder and still the same effect. So it has to be something serious is my conclusion...sounds like a trip to Sears to me...LOL

Posted on Oct 17, 2008

vash4me
  • 5 Answers

SOURCE: Machine sews zigzag although stitch is set at 0 for straight

It must be a design flaw- things don't always last like they are supposed to. I would personally check the physical reason it is not responding... knowing what it would take to make it stop moving- or whatis causing it to. *perhaps the switch isn't working to stop it- or the mechanism that controls it is worn down. If it was new- I'd return it- but there are only a few options at this point.

Posted on Jan 13, 2009

  • 1 Answer

SOURCE: singer touch and sew 648

Thread the machine as if you were going to sew. When you thread the needle, pull the thread off to the left and wrap it around the thumb screw on the left and just above the needle. Wrap it only 2 or 3 times and hold the end of the thread. With bobbin in place and the face plate slid open, push the thumb lever on the left under the face plate to the left. Begin to 'sew'. As you do, the bobbin will wind and the thread you are holding will detach. Once the bobbin is full to the outside line, slide the face plate the closed position. As it closes, it will release the thumb lever. Put the needle in the slightly lowered position and slide something blunt under the pressure foot pulling thread from both the bobbin and the needle; cut the thread when you've pulled it out sufficiently.

Posted on Apr 16, 2010

hazelgrace
  • 340 Answers

SOURCE: I do not have the manual for our Singer Touch

Hi
You can get a replacement manual for your machine from the Singer site, but they cost around $15.
http://www.singerco.com/accessories/manuals.html
Just type in the model number (640) and click on search.
The Singer site have a usefully FAQs section.
http://www.singerco.com/support/faqs.html
Just click on the question My needle keeps breaking and the answer will appear.
Hope this helps!

Posted on Nov 25, 2010

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1 Answer

My singer golden touch and sew 640 1970 stoped zigzag program


Hi,
You have included a picture of the cam stack, which on your machine is broken or at least some of the little black teeth are gone.
The cam stack should turn when the machine is running, if not your machine will still sew straight but that's all. It is not an easy part to change and the part is expensive ($40-$50).

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Touch & Sew Deluxe Zigzag model 646. Where can I get a repair manual?


Search the internet for the

make + model + "manual"

Service manuals are sometimes difficult to find as they were frequently intended only for repair personnel.

You might try some Singer sewing machine groups, ie Yahoo. Group members are usually very helpful.

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Will not zigzag or decorative stitches. New to these newer plastic style machines Always used older steel machines. This was given to me my by my sister who used it very little. Could cam be broken?


Hmm, I'm wondering if it has been cleaned and oiled recently. Older mechanicals require frequent TLC. Consult your owner's manual for cleaning and maintenance instructions:

Is your sewing machine mechanical (ie, not computerized)??? CAUTION--if your machine is computerized, do NOT proceed with the following suggestions.

If it is mechanical, have you cleaned and oiled your machine recently? Most mechanical sewing machine failures are because they have not been adequately and routinely oiled, the old oil has solidified and frozen the mechanics. I recommend Bernina oil or liquid Tri-Flow Synthetic Lube (or similar good quality sewing machine oil) for mechanical machines--do NOT use 3-in-1, cooking oil, WD-40, or the sewing machine oil from your grandmother's sewing basket. (I am not associated with any Bernina dealer.)

If it is in fact frozen, pick up a bottle of liquid Tri-Flow Synthetic Oil at the hardware store. Oil one or two drops in every oil hole (see your manual) and also every place where metal rubs on metal. But DO NOT oil any plastic gears, rubber, or belts. If it is still stiff or frozen, direct a hot handheld hair dryer into the top and bottom mechanism of your machine. See if that loosens it up. You may have to repeat.

Once your machine is working again, place a drop or two of good sewing machine oil as directed above. Be sure to use a small brush to clean the lint and dirt out of your machine, especially around the feed dogs and bobbin area. (Caution: Compressed air will sometimes force the dirt and lint into areas that cannot be cleaned.) And continue to use good quality sewing machine oil to keep it running. Recommendation: every time you change a bobbin, after 8 hours of sewing, or every six months if it is not in regular use.

Dec 30, 2015 | Singer 6038 Mechanical Sewing Machine

1 Answer

Zigzag stitch not working


Paul, please give some more info on lubricating needle bar frame and linkage. Because I do have this problem

Jun 30, 2014 | Singer 4423 Sewing Machine

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Threading a bobbin diagram


I LOVED these Touch and Sew machines! The bobbin is wound in place in the bobbin case; you just flip a lever on the left, and it will start to fill. However, you should download your instruction manual free from the Singer Sewing Machine site; it's pictured and discussed on page 7.

A heads up, though; those bobbins were available with a metal piece in the center and without; from the drawing it appears that yours takes the one without anything but a hole in the center. I owned BOTH types of machines at the same time once, and I had to be careful as to which bobbin I used in which machine.

Jun 17, 2014 | Singer Sewing Machines

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My white rotary model 2221 sewing machine will no longer switch from straight to decorative or zigzag stitching. What can I do to fix it? I have cleaned and oiled the machine and have recently used it...


it's possible that the cams that do the zigzag stitch could be worn or have gotten damaged
it would be a good idea to have it serviced

I would suggest to look in the yellow pages & see what sewing machine repair shop are in your area.

and if you do get it serviced, when you first get it home, sew on it & make sure it works correctly, they normally have a 15 to 30 day time limit for you to check the machine out & making sure it works ok, & make sure that you don't just pay for a cleaning..

Sep 11, 2011 | White Sewing Sewing Machines

1 Answer

Machine will not zigzag


The guy is right, dust kills the moving parts. try oiling the shaft that holds the needle up about 1/2 way and then run on straight stitch with no thread to work in oil, do this several times till you feel that it runs smoothly and you have a little movement side to side as this is necessary for your zig-zag. if that does not work it may be a cam or belt in the top part that needs replacing and you will need the repair to tell you that. I asked them to give me a quote before any work was done so I knew what I was up against. I love my machine so it was worth the 200.00 to get the parts replaced. It will sew anything cause it is a older model with metal rather than plastic parts. hope this helps good luck

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Singer 5050 won't zigzag stitch


I have this same issue with that same machine. Did you ever figure out what was wrong with it??

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